Automotive Catalog 3-17V 0.5A 2.5MHZ Step-Down Converter, 1.8V Output Voltage - TPS62171-Q1

TPS62171-Q1 (ACTIVE)

Automotive Catalog 3-17V 0.5A 2.5MHZ Step-Down Converter, 1.8V Output Voltage

 

Description

The TPS6217x-Q1 family is an easy to use synchronous step down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization of the DCS-Control™ topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.

In Power Save Mode, the devices draw quiescent current of about 17 µA from VIN. Power Save Mode, entered automatically and seamlessly if load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and shutdown current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in an 8-pin WSON package measuring 2 × 2 mm (DSG).

Features

  • DCS-Control™ Topology
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade: –40°C to 125°C Operating Junction Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Input Voltage Range: 3 V to 17 V
  • Up to 500-mA Output Current
  • Adjustable Output Voltage from 0.9 V to 6 V
  • Fixed Output Voltage Versions
  • Seamless Power Save Mode Transition
  • Typically 17-µA Quiescent Current
  • Power Good Output
  • 100% Duty Cycle Mode
  • Short Circuit Protection
  • Over Temperature Protection
  • Pin to Pin Compatible With TPS62160-Q1
  • Available in a 2 × 2 mm, WSON-8 Package
  • Create a Custom Design Using the TPS62170-Q1 With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck Converter (Integrated Switch)

 
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iout (Max) (A)
Regulated Outputs (#)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Special Features
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Rating
Package Group
TPS62171-Q1 TPS62160-Q1 TPS62162-Q1 TPS62170-Q1 TPS62172-Q1
3    3    3    3    3   
17    17    17    17    17   
1.8    0.9    3.3    0.9    3.3   
1.8    6    3.3    6    3.3   
0.5    1    1    0.5    0.5   
1    1    1    1    1   
2250    2250    2250    2250    2250   
2250    2250    2250    2250    2250   
0.017    0.017    0.017    0.017    0.017   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification   
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification   
  Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)    Constant on-time (COT)   
100    100    100    100    100   
-40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125   
Automotive    Automotive    Automotive    Automotive    Automotive   
WSON    WSON    WSON    WSON    WSON   

Other qualified versions of TPS62171-Q1

Version Part Number Definition
Catalog TPS62171 TI's standard catalog product
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New! Interactive Design
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WEBENCH® Designer TPS62171-Q1

  Min   Max Range
Vin  V 3.0 to 17.0V
Vout  V 1.8 to 1.8V
Iout  A ≤ 0.5A
Ambient Temp  °C -40 to 85°C


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